Apparatus for applying chemicals to rodents

ABSTRACT

An enclosure is provided having openings for entry of rodents within the enclosure. There is arranged one or more applicators in the form of a suspended flexible web configured to contact rodents entering the chamber and having a chemical on the web for application to the rodents.

BACKGROUND OF THE INVENTION

[0001] This invention relates to an apparatus for treating rodentsparticularly wild rodents with a chemical substance. In some instances,treatment of wild rodents can be beneficial to the public health. It isan object of the invention to provide an apparatus that can be placed inan outdoor area to treat wild rodents in the area with a chemicalsubstance.

SUMMARY OF THE INVENTION

[0002] According to the invention there is provided an apparatus forapplying a chemical to rodents. The apparatus includes an enclosurehaving at least one peripheral opening for allowing entrance of rodentsinto the enclosure. The enclosure includes at least one applicator inthe form of a suspended flexible web arranged to contact rodentsentering the chamber and having the chemical on the web.

[0003] For a better understanding of the present invention, togetherwith other and further objects, reference is made to the followingdescription, taken in conjunction with the accompanying drawings, andits scope will be pointed out in the appended claim.

BRIEF DESCRIPTION OF THE DRAWINGS

[0004]FIG. 1 is a top view showing an apparatus according the presentinvention with the top fully open.

[0005]FIG. 2 is a side view of the FIG. 1 apparatus showing thearrangement with the top in a nearly closed condition.

[0006]FIG. 3 is a front elevation view of an applicator useful in theFIG. 1 embodiment.

[0007]FIG. 4 is a side view of the FIG. 3 applicator.

[0008]FIG. 5 is a front elevation view of an alternate applicator.

[0009]FIG. 6 is a front elevation view of another alternate applicator.

[0010]FIG. 7 is a side view of the FIG. 6 applicator.

[0011]FIG. 8 is a partial cross-sectional view of an enclosure accordingto an embodiment of the invention.

[0012]FIG. 9 is a partial sectional view of the FIG. 8 enclosure.

[0013]FIG. 10 is a partial sectional view of an alternate enclosure.

[0014]FIG. 11 is a side elevation view of an alternate applicator foruse with the FIG. 10 enclosure.

[0015]FIG. 12 is a front elevation view of another applicator accordingto the invention.

[0016]FIG. 13 is a side view of the FIG. 12 applicator.

[0017]FIG. 14 is a front elevation view of another applicator accordingto the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

[0018] Referring to FIG. 1, apparatus 10 of the present invention isshown in a fully opened condition. The apparatus includes a lower member12 and an upper member 14 which Are hinged together at 16 to form aboxlike enclosure that can be swung open and closed. Members 12 and 14are preferably made of plastic, such as injection molded plastic. Asuitable enclosure is available from Bell Laboratories of Madison,Wisconsin and sold under the product name “Protecta Jr. Bait Station”.The enclosure is 6″×5½″ and 3″ high. The enclosure has a durable hinge16 connecting the upper member 14 and the lower member 12 and includes ascrew lock to secure the enclosure in a closed condition so thatchildren or larger animals are not able to open the enclosure and reachthe contents thereof.

[0019] Lower member 12 includes sidewalls openings 28 which are visiblein the side view of FIG. 2 and which are arranged in an appropriate sizeto permit the entry of a rodent such as a mouse. Inside member 12 thereis a provided an interior wall 18 which separates the enclosure into anentry passageway having openings 28 and an inner bait chamber in whichthere is provided a bait 24. Bait 24 is preferably a solid bait mountedon a steel horizontal rod 22 which keeps the bait off any moisture onthe floor of the enclosure. Interior wall 18 has an opening 20 by whicha rodent may enter the inner bait chamber. The top cover member 14 isprovided with three applicator mounting slots 26 a, 26B and 26C.Applicators 32 each comprise a flexible web which is suspended to extendwithin enclosure 10. Applicator 32 shown in FIG. 3 is arranged to have afabric web 36 pass through one of slots 26 and to have horizontalsupport member, comprising metal rod 34, engage the top 14 of enclosure10 so that the fabric webs 36 of applicators 32 are suspended to hanginto regions A, B and C respectively of enclosure 10 when cover 14 is inthe closed position. Accordingly, when a rodent enters the chamber andmoves through regions A, B or C, the flexible fabric web 36 of theapplicator 32 will rub across the fur or skin of the rodent and apply asmall amount of the chemical thereon to the skin or fur of the rodent.

[0020] In the embodiment shown in FIGS. 1 and 2 the applicators arearranged in positions where a rodent is likely to pass when exploringthe inside of the enclosure. In particular, the rodent will be enteringby one of openings 28 and be attracted to bait 24 in the inner baitchamber of the enclosure. In reaching the bait 24 the rodent is likelyto pass through and contact with either applicator 32A or 32B in thepassageway from opening 28 to opening 20 and thereafter also contactapplicator 32C while passing through opening 20 and approaching bait 24.

[0021] It will be understood by those familiar with the art thatdifferent size, shape and configuration of enclosures may be use inaccordance with the invention and that the particular location ofapplicators 32 in such enclosures may be at different locationsaccording to the arrangement of passages in the enclosures.

[0022] It should be additionally recognized that it may be advantageousto provide applicators 32 in a configuration wherein they can be easilyreplaced with new applicators to provide a renewed supply of chemicals.

[0023]FIGS. 3 through 14 illustrate various embodiments for applicatorsand applicator mounting arrangements according to the invention. Theapplicators shown in FIGS. 3 to 7 include a flexible web which has ahorizontal mounting member for engaging the enclosure and from which theflexible web is suspended within the enclosure to rub over a rodentpassing through the enclosure. In particular, it is desired to have theweb rub over the ear lobes and contact behind the ears of the rodent, aplace where rodents cannot remove the chemical.

[0024] The applicator 32 of FIGS. 3 and 4 includes a fabric web 36,which may be felt, cotton, wool or similar absorbent web material. Ahorizontal support rod 34 passes through a loop 40 formed by web 36 atthe upper end by seam or glue strip 38. A semicircular cutout 42 at thelower edge of web 36, opposite horizontal support 34 provides a passagewhich is lower in the height of the opening than the anticipated heightof the rodent, so that the fabric of web 36 rubs across the back, headand ears of the rodent passing through.

[0025] An alternate applicator 43 shown in FIG. 5 includes a web 46 ofsimilar material having vertical slits 47 forming flexible strips whichhang into a passageway through which a rodent may pass in the manner ofa beaded curtain. The resulting strips of the web 46 likewise rubagainst the back of a passing rodent. Applicator 43 is suspended fromsupported 44 which is in a loop formed by seam 48.

[0026] Applicators 32 and 43 may be arranged so that their respectivewebs pass through slots 26 while the support rods engage the top wall 14of the enclosure.

[0027] Another version of applicator 50 shown in FIGS. 6 and 7 includesboth semicircular opening 52 and slits 57 in web 56. Horizontal support54 may be a U-shaped plastic part to which the web 56 is glued and maysit in top of cover 14 or may be engaged by internal support slots 60formed on the interior walls of enclosure 10 as shown in FIGS. 8 and 9,Alternatively, a horizontal support bar 62 may be provided across apassageway as shown in FIG. 10, preferably having pointed holders 64 forreceiving applicator 70 having web 72 and optionally U-shaped supportmember 74 as shown in FIG. 11.

[0028] Applicator 80 shown in FIGS. 12 and 13 includes a plane web 82which is formed with a perpendicular portion 84 at the top edge. Anadhesive strip 86 is applied to portion 84 to enable attachment to theinterior of top wall 14 of enclosure 10.

[0029] Applicator 90 shown in FIG. 14 includes web 94 with perpendicularportion 94 and adhesive strip 96. Cutouts 98, preferably triangular inshape, invite contacting passage by a rodent. The base opening ofcutouts 98 along the lower edge of web 92 are arranged to be narrowerthan the width of a rodent.

1. Apparatus for applying a chemical to rodents comprising an enclosurehaving at least one peripheral opening allowing entry of rodents intosaid enclosure, said enclosure including at least one applicationarranged to contact rodents entering said chamber, wherein theapplicator comprises a flexible web suspended into said enclosure andhaving said chemical on said flexible web, whereby said web contactsrodents passing thereunder.
 2. Apparatus as specified in claim 1 whereinsaid web comprises a fabric.
 3. Apparatus as specified in claim 2wherein said applicator includes an upper horizontal support member andsaid fabric suspended from said support member.
 4. Apparatus asspecified in claim 3 wherein said fabric includes vertical slits in saidfabric, said slits extending from an edge of said fabric opposite saidhorizontal support member.
 5. Apparatus as specified in claim 3 whereinsaid fabric includes at least one opening extending from an edge of saidfabric opposite said horizontal support member, said opening having atleast one dimension smaller than said rodents.
 6. Apparatus as specifiedin claim 5 wherein said opening is a semicircular opening with a radiussmall than the height of said rodents.
 7. Apparatus as specified inclaim 5 wherein said opening is a triangular opening having a trianglebase along said edge, said triangle base being smaller than the width ofsaid rodent.
 8. Apparatus as specified in claim 1 wherein said enclosurehas a top wall, wherein there is a slot in said top wall, wherein saidapplicator includes an elongated support member on a top edge of saidflexible web, said top edge being shorter than said slot and saidsupport being longer than said slot, whereby when said web is insertedinto said slot, said support member engages said top wall and supportssaid web.
 9. Apparatus as specified in claim 1 wherein said enclosurehas a passageway, wherein said applicator includes an elongated supportmember on a top edge of said flexible web, wherein said passage includesslots for receiving ends of said support member to support and suspendsaid web across said passage.
 10. Apparatus as specified in claim 1wherein said enclosure has a passageway, wherein there is provided asupport beam across said passageway for holding said applicator andwherein said flexible web is arranged to engage and be suspended fromsaid support beam.
 11. Apparatus as specified in claim 1 said applicatorhas an adhesive strip along an upper edge for adhering to a top wall ofsaid enclosure to suspend said web.